Table 1 - U.S. Gas Transmission Pipeline Incidents: 1995-2000

Table 1 - U.S. Gas Transmission Pipeline Incidents: 1995-2000

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Cause 1995 1996 1997 1998 1999 2000 Average
1995-2000 Percent
Construction/material defect 13 8 12 19 8 7 11 15
Corrosion, external 4 8 5 8 3 14 7 9
Corrosion, internal 5 7 16 14 10 16 11 15
Corrosion, not specified 0 0 0 0 1 1 0.3 0.4
Damage by outside force 27 38 28 37 18 20 28 37
Other 15 16 12 21 14 22 17 22
Total 64 77 73 99 54 80 75 99

SOURCE: U.S. Department of Transportation, Research and Special Programs Administration, Office of Pipeline Safety, from Form RSPA F-7100.2, available at http://ops.dot.gov/stats.htm, as of Oct. 1, 2001.